CN115836974A - Electronic dispensing equipment - Google Patents

Abstract

The invention discloses an electric dispensing device, which comprises: a housing device provided with a fixing portion for fixing the syringe; the driving device is arranged on the shell device and is used for driving the piston rod to move so as to draw or inject the liquid medicine; the electric control device is arranged in the shell device and comprises a built-in power supply and a control assembly, the built-in power supply is used for providing electric energy for the driving device and the control assembly, and the control assembly is used for controlling the driving device to act. In the using process of the electric dispensing equipment, the piston rod does not need to be pushed manually, so that the infection risk is avoided, and the working strength is reduced; the built-in power supply can supply power to the driving device and the control assembly at any time, an external power supply is not needed, and the built-in power supply can be used under the condition that no external socket is provided, so that the practicability is improved; in addition, the electric medicine dispensing equipment provided by the invention has the advantages of compact structure, convenience in grasping and easiness in carrying.

Description

Electronic dispensing equipment

Technical Field

The invention relates to the technical field of medical instruments, in particular to electric dispensing equipment.

Background

At present, when a hospital nurse dispenses medicines, a common disposable syringe is usually used, different medicines are respectively prepared in infusion bottles according to the medicine taking requirements of different patients, and then liquid medicine is input into the bodies of the patients, the traditional medicine dispensing mode is that workers operate with hands, sometimes the workers touch a piston rod, even repeatedly touch the piston rod for multiple times, and the risk of pollution exists; moreover, the labor intensity of workers is high, fatigue is easily caused, and parts such as hand skin, wrist joints and the like are seriously strained.

In the using process of the dispensing machine in the prior art, an external fixed power supply is needed, the dispensing machine can be only fixed in a single environment, the applicable scene is limited, and the dispensing machine is inconvenient to carry.

In summary, how to improve the portability and the practicability of the dispensing machine is a problem to be solved urgently by those skilled in the art.

Disclosure of Invention

In view of this, an object of the present invention is to provide an electric dispensing device, which is provided with an internal power supply, does not require an external power supply during use, can be moved to any desired environment, is not limited by a use scenario, and can effectively improve portability and practicability of the electric dispensing device.

In order to achieve the above purpose, the invention provides the following technical scheme:

an electrically powered dispensing device comprising:

a housing device provided with a fixing portion for fixing the syringe;

the driving device is arranged on the shell device and is used for driving the piston rod to move so as to draw or inject liquid medicine;

the electric control device is arranged in the shell device and comprises a built-in power supply and a control assembly, the built-in power supply is used for providing electric energy for the driving device and the control assembly, and the control assembly is used for controlling the driving device to act.

Optionally, the driving device includes a motor, a screw rod driven by the motor to rotate, and a nut sleeved on the screw rod, and the nut is connected with the piston rod of the injector.

Optionally, the nut is provided with a clamping groove for fixing a flange of the piston rod, and the clamping groove is arranged at one end of the nut, which is far away from the motor.

Optionally, a slide way matched with the nut is arranged in the shell device, and the nut moves along the slide way;

both ends of the slide way are provided with limiting parts for limiting the moving distance of the nut, and the distance between the limiting parts at both ends is equal to the moving distance of the nut after one-time quantitative extraction.

Optionally, the electric control device includes first opto-coupler sensor and second opto-coupler sensor, first opto-coupler sensor with the second opto-coupler sensor set up respectively in the both ends of nut stroke, the nut is provided with and is used for triggering first opto-coupler sensor or the lug of second opto-coupler sensor.

Optionally, a motor bracket for mounting the motor is arranged in the housing device, the electric control device is arranged at the lower part of the motor bracket, and foam is arranged between the electric control device and the motor bracket.

Optionally, the fixing portion is a snap ring disposed at the front end of the housing device, and the snap ring is provided with a groove for fitting with the syringe and a clamping buckle for clamping and fixing the syringe.

Optionally, the clamping buckle comprises a first elastic buckle and a second elastic buckle which are arranged on the side wall of the groove, and the first elastic buckle and the second elastic buckle are symmetrically arranged around the axial middle section of the groove.

Optionally, the housing device includes an upper housing and a lower housing that are fastened together, an extension portion is provided at the front end of the lower housing, which extends out of the upper housing, and the fixing portion is provided at the extension portion;

the control assembly comprises a main control circuit board and an induction circuit board which are positioned in a space enclosed by the lower shell and the upper shell, a key circuit board which is positioned in the space enclosed by the lower shell and the fixing part, and an electronic key arranged on the extension part.

Optionally, the internal power supply includes a battery and a power socket, and a through hole matched with the power socket is arranged at the rear end of the housing device.

In the process of using the electric dispensing equipment provided by the invention, firstly, the injector needs to be fixed to the shell device, the driving device is connected with the piston rod of the injector, when the liquid medicine needs to be extracted, the driving device is controlled by the control assembly to push the piston rod to the initial position, then the injector is controlled to prick into the liquid medicine bottle, and the driving device is controlled by the control assembly to drive the piston rod to move for a preset distance, so that the required amount of liquid medicine is extracted; when the liquid medicine needs to be pushed out for injection, the control assembly controls the driving device to drive the piston rod to move reversely for a preset distance, and the liquid medicine is pushed and injected.

Compared with the prior art, the electric dispensing equipment provided by the invention does not need to manually push the piston rod in the using process, so that the infection risk is avoided, and the working strength is reduced; the built-in power supply can supply power to the driving device and the control assembly at any time, an external power supply is not needed, and the built-in power supply can be used under the condition that no external socket is provided, so that the practicability is improved; in addition, the electric dispensing equipment provided by the invention has the advantages of compact structure, convenience in grasping and easiness in carrying.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an appearance of an embodiment of an electric dispensing device provided by the present invention;

FIG. 2 is a bottom view of the motorized dispensing device of FIG. 1;

FIG. 3 is a schematic cross-sectional view of an electrically powered dispensing device provided in accordance with the present invention;

FIG. 4 is an exploded view of the motorized dispensing device provided by the present invention;

FIG. 5 is a schematic structural view of the upper case;

FIG. 6 is a structural view of the lower case;

FIG. 7 is a schematic view of a snap ring;

FIG. 8 is a schematic view of a nut;

FIG. 9 is a schematic view of the structure of the motor bracket;

fig. 10 is a schematic view of the connection relationship of the driving device.

In FIGS. 1-10:

1 is an upper shell, 11 is a back spigot, 12 is a male buckle, 13 is a motor fixing rib, 14 is a T-shaped rib, 15 is a female spigot, 2 is a lower shell, 21 is a female buckle, 22 is a battery support rib, 23 is a limit rib, 24 is a clamping position, 25 is a first fixed column, 26 is a second fixed column, 27 is a third fixed column, 28 is a male spigot, 29 is a power socket, 210 is a through hole, 3 is a fixed part, 31 is a conical opening, 32 is a clamping buckle, 321 is a first elastic buckle, 322 is a second elastic buckle, 33 is a vertical rib, 4 is an electric control device, 41 is a power socket, 42 is a battery, 43 is a main control circuit board, 44 is an induction circuit board, 441 is a first induction circuit board, 442 is a second induction circuit board 45 is a key circuit board, 46 is an electronic key, 47 is a silica gel key, 48 is an optical coupler sensor, 481 is a first optical coupler sensor, 482 is a second optical coupler sensor, 49 is a power indicator, 5 is a driving device, 51 is a motor, 52 is a motor block, 53 is a first screw, 54 is a slideway, 55 is a nut, 551 is a threaded hole, 552 is a clamping groove, 553 is a lug, 554 is a matching part, 6 is foam, 61 is first foam, 62 is second foam, 63 is third foam, 7 is a motor bracket, 71 is a transverse rib, 72 is a pressing block, 73 is a square groove, 74 is a positioning hole, 8 is an injector, 81 is a piston rod, 82 is a needle cylinder, 83 is a flanging, and 84 is a needle cylinder clamping edge.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The core of the invention is to provide the electric dispensing equipment which is provided with the built-in power supply, does not need an external power supply in the using process, can be moved to any required environment, is not limited by a using scene, and can effectively improve the portability and the practicability of the electric dispensing equipment.

Please refer to fig. 1 to 10.

It should be noted that the syringe 8 mentioned in the present application document may be the syringe 8 as shown in fig. 4, the piston rod 81 of the syringe 8 is a hollow structure, the screw rod may be inserted into the hollow structure of the piston rod 81, and the needle seat of the syringe 8 is designed as a knob, which may effectively prevent the needle from falling off; of course, the injector 8 mentioned in the present application may also be other injectors 8 meeting the requirements, which are not described herein.

This embodiment discloses an electronic dispensing equipment, includes:

a housing device provided with a fixing portion 3 for fixing the syringe 8;

the driving device 5 is arranged on the shell device and is used for driving the piston rod 81 to move so as to draw or inject the liquid medicine;

and the electric control device 4 is arranged in the shell device and comprises a built-in power supply and a control assembly, the built-in power supply is used for providing electric energy for the driving device 5 and the control assembly, and the control assembly is used for controlling the driving device 5 to act.

It should be noted that the driving device 5 may be a driving structure composed of the motor 51, the lead screw, the nut 55, and the like, so as to drive the piston rod 81 to move, or a driving structure composed of an air cylinder, a sliding rail, a sliding block, and the like, or other driving structures meeting the requirements, and only needs to drive the piston rod 81 to move, which is determined according to the actual situation.

The electric control device 4 comprises a power socket 41, a battery 42, a main control circuit board 43, an induction circuit board 44, a key circuit board 45, an electronic key 46, a silica gel key 47, an optical coupling sensor 48, a power indicator 49 and other structures, and in the specific use process, the moving stroke of the piston rod 81 can be automatically controlled through program setting, so that the piston rod 81 can move according to the preset requirement, and liquid medicine with the preset volume can be extracted or injected; a positive moving key and a negative moving key can be arranged, the piston rod 81 is driven by the driving device 5 to move under the state that the keys are pressed, after the piston rod is loosened, the driving device 5 stops moving, and the moving stroke of the piston rod 81 is controlled by the keys; or a sensor for detecting the moving stroke of the piston rod 81 is arranged, when the piston rod 81 moves to a preset stroke, the sensor sends a related signal to control the sensing device circuit board and the main circuit board, and the related controller controls the driving device 5 to stop moving; of course, other control modes may be used, which are determined according to actual situations and are not described herein.

In the process of using the electric dispensing apparatus provided in this embodiment, firstly, the syringe 8 needs to be fixed to the housing device, and the driving device 5 is connected to the piston rod 81 of the syringe 8, when a liquid medicine needs to be extracted, the driving device 5 is controlled by the control component to push the piston rod 81 to an initial position, then the syringe 8 is controlled to prick into the liquid medicine bottle, and the driving device 5 is controlled by the control component to drive the piston rod 81 to move a preset distance, so as to extract a required amount of liquid medicine; when the liquid medicine needs to be pushed out for injection, the control assembly controls the driving device 5 to drive the piston rod 81 to move reversely for a preset distance, and the liquid medicine is pushed and injected.

Compared with the prior art, the electric dispensing equipment provided by the embodiment does not need to manually push the piston rod 81 in the using process, so that the infection risk is avoided, and the working strength is reduced; the built-in power supply can supply power to the driving device 5 and the control assembly at any time, an external power supply is not needed, and the built-in power supply can be used under the condition that no external socket is provided, so that the practicability is improved; in addition, the electric medicine dispensing equipment provided by the invention has the advantages of compact structure, convenience in grasping and easiness in carrying.

Preferably, the built-in power supply in the electronic dispensing equipment is 2500mAh battery 42, can incessantly use more than three hours in succession, and electrified source line and uncharged source line all can use, and the red light is bright, and the suggestion electric quantity is not enough, and the red light scintillation charges and goes on, and the green light is bright, and the completion of charging, easy operation to anti-electromagnetic interference takes precautions against earthquakes, and the service environment is unrestricted.

In one embodiment, the driving device 5 includes a motor 51, a screw driven by the motor 51 to rotate, and a nut 55 sleeved on the screw, wherein the nut 55 is connected to the piston rod 81 of the syringe 8.

In use, the motor 51 is controlled to drive the screw rod to rotate, so as to drive the nut 55 to move along the screw rod, and further drive the piston rod 81 to move.

In this embodiment, the driving device 5 is provided with the motor 51, the lead screw and the nut 55, so that the structure of the driving device 5 is more compact, and the precision of the movement of the piston rod 81 can be effectively provided.

As shown in fig. 8, the nut 55 is provided with a threaded hole 551 running through the axial direction thereof, the screw rod is matched with the threaded hole 551, the nut 55 is provided with a clamping groove 552 for fixing the flange 83 of the piston rod 81, the clamping groove 552 is arranged at one end of the nut 55 departing from the motor 51, the flange 83 of the piston rod 81 is clamped in the clamping groove 552, and the piston rod 81 can be driven to move in the moving process of the nut 55; the piston rod 81 can be arranged to be a hollow structure, and when the screw rod extends out of the nut 55, the screw rod can extend into the hollow structure of the piston rod 81, so that the interference between the screw rod and the piston rod 81 is avoided; of course, the arrangement position of the clamping groove 552 can be dislocated from the threaded hole 551, so that the interference of the screw rod after extending out by the piston rod 81 is avoided, and the arrangement position is determined according to actual conditions.

In this embodiment, the arrangement of the engaging groove 552 simplifies and facilitates the connection between the piston rod 81 and the nut 55, shortens the installation time of the syringe 8, and facilitates the operation.

In one embodiment, a slide 54 is provided in the housing means for engaging with a nut 55, the engaging portion 554 of the nut 55 moving along the slide 54; both ends of the slide way 54 are provided with limiting members for limiting the moving distance of the nut 55, and the distance between the limiting members at both ends is equal to the moving distance for completing one-time quantitative extraction of the nut 55.

The limiting member may be a limiting protrusion, a limiting sensor, or other limiting structures meeting the requirements, which are not described herein.

Preferably, the slideway 54 is a stainless steel slideway 54.

As shown in fig. 10, the slide 54 may be set as a sliding groove, and the length of the sliding groove is equal to the moving distance of the injector 8 completing one-time quantitative extraction of the piston rod 81, in the process of using the electric dispensing device, in the initial state, the nut 55 is located at one end of the sliding groove and contacts with the end portion of the sliding groove, the control nut 55 moves to the other end of the sliding groove along the sliding groove, and makes the nut 55 contact with the end portion of the other end of the sliding groove, the moving distance of the nut 55 is just the length of the sliding groove, and then one-time standard extraction or injection of the injector 8 can be completed.

In this embodiment, the limit member is provided to limit the single movement distance of the nut 55, so that the volume of the syringe 8 for extracting the liquid medicine at a time can be limited, and the control and operation are facilitated.

On the basis of the above embodiment, a first optical coupler sensor 481 and a second optical coupler sensor 482 may be disposed in the electric control device 4, the first optical coupler sensor 481 and the second optical coupler sensor 482 are respectively disposed at two ends of a stroke of the nut 55, as shown in fig. 8, the nut 55 is provided with a projection 553 for triggering the first optical coupler sensor 481 or the second optical coupler sensor 482.

As shown in fig. 10, a first sensing circuit board 441 and a second sensing circuit board 442 are disposed on an inner side wall of the housing device, the first sensing circuit board 441 is provided with a first optical coupler sensor 481, the second sensing circuit board 442 is provided with a second optical coupler sensor 482, the first optical coupler sensor 481 and the second optical coupler sensor 482 are collectively referred to as an optical coupler sensor 48, in the process that the motor 51 drives the nut 55 to move, when the nut 55 moves to the rear end, the first optical coupler sensor 481 is triggered, the first optical coupler sensor 481 sends a signal to an associated controller, and after the controller receives the signal sent by the first optical coupler sensor 481, the motor 51 is controlled to stop moving or move reversely; when the nut 55 moves to the front end, the second optical coupler sensor 482 is triggered, the second optical coupler sensor 482 sends a signal to a relevant controller, and after the controller receives the signal sent by the second optical coupler sensor 482, the controller controls the motor 51 to stop moving or move reversely.

In this embodiment, the first optical coupler sensor 481 and the second optical coupler sensor 482 are arranged to detect the position of the nut 55, so that the movement precision of the piston rod 81 can be effectively improved; of course, the position of the movable seat may also be detected by providing the first optical coupler sensor 481 and the second optical coupler sensor 482, which is specifically determined according to actual conditions.

The front end referred to in this document is the end proximal to the needle of the syringe 8 and the rear end is the end distal to the needle of the syringe 8.

Preferably, a motor bracket 7 for mounting the motor 51 is arranged in the housing device, the electric control device 4 is arranged at the lower part of the motor bracket 7, and foam 6 is arranged between the electric control device 4 and the motor bracket 7.

Preferably, a motor block 52 is disposed between the motor 51 and the motor holder 7.

As shown in fig. 9, the motor bracket 7 is connected and fixed to the lower case 2 through four positioning holes 74, the transverse rib 71 is used for supporting the motor 51, a rectangular hole right below the motor 51 is a reserved position for a flat cable of the motor 51, the battery 42 and a power plug are arranged below the motor bracket 7, the first foam 61 is arranged in the middle, the electronic device is prevented from being damaged in the extrusion process, the square grooves 73 on the two sides can be used for avoiding the female buckle 21 of the lower case 2, the power socket 41 is arranged below the pressing block 72, and the pressing block 72 is used for limiting the position of the motor 51 and is used for separation.

The motor support 7 is arranged to reasonably separate the driving device 5 from the electric control device 4, so that the driving device 5 is prevented from extruding the electric control device 4, and the layout of internal parts of the electric dispensing equipment is more reasonable.

In a specific embodiment, the fixing portion 3 is a snap ring arranged at the front end of the housing means, the snap ring being provided with a groove for cooperating with the syringe 8 and a clamping buckle 32 for clamping and fixing the syringe 8.

Preferably, the clamping catch 32 comprises a first elastic catch 321 and a second elastic catch 322 arranged on the side wall of the groove, and the first elastic catch 321 and the second elastic catch 322 are symmetrically arranged about the axial middle section of the groove.

Preferably, the lower end surface of the fixing portion 3 is provided with a plurality of vertical ribs 33 to improve the rigidity of the fixing portion 3.

As shown in fig. 4, the snap ring is located at the front end of the lower shell 2, as shown in fig. 7, the snap ring is provided with a tapered opening 31 and is fixedly connected with the lower shell 2 through a second screw, and the second screw penetrates through the tapered opening 31 and is connected to the lower shell 2; the back of the clamping ring is provided with a plurality of longitudinal reinforcing ribs so as to improve the rigidity of the clamping ring; the upper surface of snap ring is provided with semi-circular draw-in groove 552 for assemble disposable syringe 8, both sides in the middle of draw-in groove 552 set up two and press from both sides tight buckle 32, its internal diameter slightly is less than the external diameter of 8 syringes 82 of syringe, when disposable syringe 8 pushes down, press from both sides tight buckle 32 and take place outside deformation, contact with the bottom of semicircle snap ring until syringe 8 and syringe 8, it is fixed to press from both sides tight buckle 32 dependence deformation power to syringe 8, when taking out syringe 8, press from both sides tight buckle 32 and take place backward deformation once more, break away from completely until syringe 8, press from both sides tight buckle 32 and reset.

The setting position and the setting number of the clamping buckles 32 need to be determined according to actual situations, and are not described herein.

In a specific embodiment, the shell device comprises an upper shell 1 and a lower shell 2 which are connected in a buckling manner, the front end of the lower shell 2 extends out of the upper shell 1 to form an extending part, and a fixing part 3 is arranged on the extending part;

the control assembly comprises a main control circuit board 43 and an induction circuit board 44 which are positioned in a space enclosed by the lower shell 2 and the upper shell 1, a key circuit board 45 which is positioned in a space enclosed by the lower shell 2 and the fixing part 3, and an electronic key 46 arranged on the extension part.

The internal power supply comprises a battery 42 and a power socket 29, and the rear end of the housing means is provided with a through hole 210 for cooperation with the power socket 29.

As shown in fig. 1 and 2, the whole casing of the electric dispensing equipment is designed to be streamlined, the button bin is located at the front section of the holding part and protrudes downwards, the user can flexibly press the silica gel button 47 by fingers when holding the electric dispensing equipment with one hand, so that the motor 51 starts, stops and rotates forwards and backwards, the consumable used in the embodiment is the special disposable syringe 8, and the hollow and needle seat in the middle of the piston rod 81 is designed to be a knob, so that the requirement of the electric dispensing machine is met more. Streamlined design accords with ergonomic structure, and the one hand can be held, and the button storehouse is located the portion front end of holding, and the whole extraction of accessible finger control is injected the process, and dispensing operation is simple light, has reduced staff's intensity of labour by a wide margin.

As shown in fig. 3 and 4, the driving device 5 and the electric control device 4 are both located in the housing device, and no finger is required to directly contact with the piston rod 81 during the working process, so as to avoid cross infection, the main control circuit board 43 is located in the lower casing 2, the key circuit board 45 is located in the key cabin, the main control circuit board 43 and the key circuit board 45 are both fixed to the lower casing 2 through screws, the sensing circuit board 44 is located on the side wall of the slideway 54, wherein the main control circuit board 43 is provided with an integral control module, and the key circuit board 45, the sensing circuit board 44, the battery 42, the power socket 41 and the servo motor 51 are all connected with the main control circuit board 43 in a flat cable manner. When the electronic components which are easy to damage, such as the motor 51, the main control circuit board 43, the battery 42, the power socket 41 and the like are fixedly installed, the anti-collision foam 6 is arranged on the surface of the electronic components, so that the influence of shaking on the electronic components is reduced; as shown in fig. 3, a first foam 61 is disposed on the upper portion of the battery 42, a second foam 62 is disposed on the lower portion of the main control circuit board 43, and a third foam 63 is disposed on the fixed position of the motor 51.

As shown in fig. 5 and 6, the upper case 1 and the lower case 2 are fixed by matching and clamping of a male spigot 28 and a female spigot 15, 8 female buckles 21 are evenly distributed in the region of the male spigot 28 of the lower case 2, 8 male buckles 12 are evenly distributed in the region of the female spigot 15 of the upper case 1, during assembly, the upper case 1 is fixed by means of spigot limiting and buckle deformation, a reverse spigot 11 is further arranged on the upper case 1 to prevent the upper case 1 and the lower case 2 from being assembled and deformed, a motor fixing rib 13 and a T-shaped rib 14 in the upper case 1 are used for fixing a motor 51, a power socket 29 is arranged at the rear side of the lower case 2, a battery 42 is arranged in a battery support rib 22, and the mounting positions of structures such as a circuit board and the like are limited by a limiting rib 23; the peripheral fixing columns comprise a first fixing column 25, a second fixing column 26 and a third fixing column 27 which are used for fixing the motor support 7, the slide way 54, the main control circuit board 43, the key circuit board 45 and the clamping ring respectively, and the clamping position 24 is used for clamping the clamping edge 84 of the syringe of the main injector 8.

In the process of using the electric dispensing equipment shown in fig. 1-10, before dispensing, the forward button is pressed down to place the nut 55 at the initial position, at this time, the distance between the clamping groove 552 in the nut 55 and the clamping position 24 of the lower shell 2 is equal to the distance between the pressing hand of the injector 8 and the flanging 83 of the syringe, the flanging 83 is matched with the clamping groove 552, the clamping edge 84 of the syringe is matched with the clamping position 24 of the lower shell 2, and simultaneously, the syringe 82 of the injector 8 is pressed down to enter the clamping ring for fixing, and the preparation work before extraction is completed.

When the extraction process is carried out, a user holds the ampoule bottle by one hand, holds the electric dispensing equipment by the other hand, presses the backward key, an input signal of the electronic key 46 is processed by the circuit board control module, the control module sends a signal to drive the motor 51 to rotate forward, the nut 55 linearly retreats in the sliding groove along the shaft of the motor 51, the needle cylinder 82 generates negative pressure, the liquid medicine gradually enters the needle cylinder 82 until the nut 55 reaches the maximum movement distance, the first optical coupling sensor 481 senses the position of the nut, the signal input is processed by the control module, the motor 51 stops rotating, and the extraction process is completed.

When carrying out the process of pushing, the user holds the infusion bottle in one hand, hold electronic medicine dispensing machine in one hand, press the key that advances, electron button 46 input signal is handled by circuit board control module, control module sends signal driving motor 51 reversal, nut 55 advances along motor 51 axle straight line in the spout, cylinder 82 produces the malleation, the liquid medicine gets into the infusion bottle gradually, until screw nut 55 reaches minimum movement distance department, its position is responded to second opto-coupler sensor 482, handle signal input by control module, motor 51 stall, accomplish once and push the process.

The first fixing column 25, the second fixing column 26 and the third fixing column 27, the first elastic bayonet and the second elastic buckle 322, the first induction circuit board 441 and the second induction circuit board 442, the first foam 61, the second foam 62 and the third foam 63, the first optical coupler sensor 481 and the second optical coupler sensor 482, and the first screw 53 and the second screw "first", "second" and "third" are only used for distinguishing the difference of the positions and are not sequentially distinguished.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. Any combination of all embodiments provided by the present invention is within the scope of the present invention, and will not be described herein.

The electrically operated dispensing device provided by the present invention has been described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, it is possible to make various improvements and modifications to the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.

Claims (10)

1. An electrically powered dispensing device, comprising:

a housing device provided with a fixing portion (3) for fixing the syringe (8);

the driving device (5) is arranged on the shell device and is used for driving the piston rod (81) to move so as to draw or inject liquid medicine;

the electric control device (4) is arranged in the shell device and comprises a built-in power supply and a control assembly, the built-in power supply is used for providing electric energy for the driving device (5) and the control assembly, and the control assembly is used for controlling the driving device (5) to act.

2. The motorized dispensing device according to claim 1, wherein the driving means (5) comprises a motor (51), a lead screw driven by the motor (51) to rotate, and a nut (55) sleeved on the lead screw, wherein the nut (55) is connected with a piston rod (81) of the syringe (8).

3. The electromotive dispensing device according to claim 2, characterized in that the nut (55) is provided with a catch (552) for fixing a flange (83) of the piston rod (81), the catch (552) being provided at an end of the nut (55) facing away from the motor (51).

4. An electrically operated dispensing device according to claim 2, wherein a slide (54) cooperating with said nut (55) is provided in said housing means, said nut (55) being movable along said slide (54);

both ends of the slide way (54) are provided with limiting parts for limiting the moving distance of the nut (55), and the distance between the limiting parts at both ends is equal to the moving distance for completing one-time quantitative extraction of the nut (55).

5. The motorized dosing device according to claim 4, characterized in that the electronic control means (4) comprise a first (481) and a second (482) optocoupler sensor, the first (481) and the second (482) optocoupler sensor being respectively arranged at two ends of the travel of the nut (55), the nut (55) being provided with a projection (553) for activating the first (481) or the second (482) optocoupler sensor.

6. An electric dispensing device according to claim 2, characterized in that a motor bracket (7) for mounting the motor (51) is provided in the housing means, the electric control device (4) is provided at a lower portion of the motor bracket (7), and foam (6) is provided between the electric control device (4) and the motor bracket (7).

7. An electrodynamic dispensing device according to any one of claims 1-6, characterized in that the fixing part (3) is a snap ring provided at the front end of the housing means, the snap ring being provided with a groove for cooperating with the syringe (8) and a clamping catch (32) for clamping the syringe (8).

8. The motorized dispensing device according to claim 7, wherein the clamping snap (32) comprises a first elastic snap (321) and a second elastic snap (322) provided to the side walls of the recess, and the first elastic snap (321) and the second elastic snap (322) are symmetrically arranged with respect to an axial middle section of the recess.

9. An electrically operated dispensing device according to any of claims 1-6, wherein the housing means comprises an upper housing (1) and a lower housing (2) which are snap-coupled, the front end of the lower housing (2) is provided with an extension portion which extends out of the upper housing (1), and the fixing portion (3) is provided in the extension portion;

the control assembly comprises a main control circuit board (43) and an induction circuit board (44) which are positioned in a space enclosed by the lower shell (2) and the upper shell (1), a key circuit board (45) which is positioned in a space enclosed by the lower shell (2) and the fixing part (3), and an electronic key (46) which is arranged on the extension part.

10. An electrically powered dispensing device according to any of claims 1-6, wherein the built-in power source comprises a battery (42) and a power socket (29), and the rear end of the housing means is provided with a through hole (210) for cooperation with the power socket (29).

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